Structure 12271A0000000 · King County, WA
Carries W.b. & Rev I-90 over Lake Washington, 2.6 E Jct I-5.
5,737 ft end to end: about 16 football fields, or 1.1 miles. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a box-beam bridge.
| State | Washington |
| County | King |
| Location | 2.6 E Jct I-5 |
| Carries | W.b. & Rev I-90 |
| Crosses | Lake Washington |
| Coordinates | 47.59020, -122.28203 |
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 5736.9 ft (1748.6 m) |
| Max Span | 5736.9 ft (1748.6 m) |
| Deck Width | 105.0 ft (32 m) |
| Deck Area | 55955.2 sq m |
| Main Spans | 1 |
| Year Built | 1989 |
| Avg Daily Traffic | 68,544 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 5 |
| Last Inspection | April 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | 0012271A0000000 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.